segundo fsck

sudo lsblk
NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda           8:0    0 465,8G  0 disk
└─sda2        8:2    0 465,5G  0 part /mnt
sdb           8:16   0 223,6G  0 disk
├─sdb1        8:17   0   256M  0 part
└─sdb2        8:18   0 223,3G  0 part
mmcblk0     179:0    0  59,5G  0 disk
├─mmcblk0p1 179:1    0   256M  0 part /boot
└─mmcblk0p2 179:2    0  59,2G  0 part /
pi@raspberrypi:/ $ sudo fsck -y /dev/sdb1
fsck from util-linux 2.33.1
e2fsck 1.44.5 (15-Dec-2018)
fsck.ext2: No existe el fichero o el directorio while trying to open /dev/sdb1
Possibly non-existent device?
pi@raspberrypi:/ $ sudo fsck -y /dev/sdb2
fsck from util-linux 2.33.1
e2fsck 1.44.5 (15-Dec-2018)
fsck.ext2: No existe el fichero o el directorio while trying to open /dev/sdb2
Possibly non-existent device?
pi@raspberrypi:/ $